Find the true cost of your currency.
Most FX providers advertise "zero fees" but hide their margin in the exchange rate. Enter your transaction and see exactly what you're paying — compared to the interbank mid-market rate — in pounds and pence.
Built for clarity, not confusion.
The FX market is famously opaque. The calculator compares the rate you received — or are being quoted — directly against the interbank mid-market rate, then shows you the difference in real money. You enter the sell currency, buy currency, amount, and either a live rate, a forward rate, or a historical rate from up to two years ago. The tool fetches the real mid-market rate for that moment and shows the provider's margin in pounds and pence.
Live Spot Comparisons
Compare real-time spot rates against the true mid-market rate for GBP, USD, and EUR pairs. See the hidden margin your provider is taking, right now.
Forward Rate Comparisons
Planning ahead? Compare forward rates so you know exactly what you're locking in before you commit — and how that stacks up against fair market pricing.
Historical Spot Data
Already made a transfer? Enter the date and rate you received and we'll show you what you should have paid — accurate to the minute, up to two years back.
The 3% hidden fee you didn't know you were paying.
Many providers advertise "zero fees" while baking a 1–3% margin into the exchange rate itself. On a $100,000 transfer to pay overseas suppliers, that's up to $3,000 lost in a single transaction — with no fee line to point to.
My Currency Cost strips away the marketing. It compares the provider's rate directly against the interbank mid-market benchmark and shows the real cost of the transaction — not as a percentage, but in actual money.
- Banks typically charge 2–5% in hidden markups
- Brokers often give "teaser rates" that worsen over time
- My Currency Cost reveals the true cost in seconds. Free, no sign-up required.
Stop guessing. Start knowing.
Every pip counts when you're moving significant volume. Use our free tool to benchmark your current provider and see if you're leaving money on the table.